Upper B Street Weather Forecast
- 41
- 67
Sunny
- 45
- 69
Mostly Sunny
- 44
- 68
Mostly Sunny
- 45
- 67
Partly Sunny
- 45
- 67
Mostly Sunny
- 44
- 65
Mostly Sunny
- 46
- 65
Partly Sunny
Today 14 Jan San Francisco Bay Shoreline
Sunny. Highs in the lower to mid 60s. North Winds 5 to 10 Mph.
Tonight 14 Jan San Francisco Bay Shoreline
Mostly clear. Lows in the lower to mid 40s. Northeast Winds 5 to 10 Mph.
Upper B Street Temperature Statistics
January Temperature
Hayward, Hayward Air Terminal (2.5 miles)
Lowest 10 January, 2026
35.1 °FAverage January
52.6 °FHighest 2 January, 2026
63 °F
Climate (2021–Present)
Hayward, Hayward Air Terminal (2.5 miles)
Average Low 2021–2026
52.1 °FAverage 2021–2026
59.3 °FAverage High 2021–2026
68.8 °F